Re: opie player2 - streaming and other issues

On Sun December 9 2007 09:39:39 pm Rajalakshmi Raghavan wrote:
> Dear members,
>
> I am new to this forum.. and I joined it because I need help regarding the
> mediaplayer of OPIE. I am totally new to the software field and hence
> facing several problems ..=)
>
> I am basically working on a mobile reference platform board, which uses the
> opie 1.2.0 environment. The mediaplayer 1 that comes together with opie
> 1.2.0, when i tested it on my reference platform, had the following
> performance. It refused to play video (any format) and only .mp3 and .wav
> audio files played.

I'm not sure exactly what your problem is, but I know that when I started 
playing with this stuff years ago it took me quite awhile to learn that most 
of my problems came from the bandwidth limits of the device.  I wasn't 
streaming, but reading from and SD card.  All the iPAQ hardware I've ever 
seen was never better than 1X reading from an SD card.  That didn't give me a 
lot of bandwidth.  I suspect that you will have MORE bandwidth from a LAN 
connection.

Here's what I found.  You can't use too much total bandwidth.  The player ONLY 
does a few resolutions, so you can't make scaled down video.  Using fewer 
frames/sec seemed to help a lot.

I do have some shell scripts that I used with mencoder to produce xvid files 
with both ogg and mp3 audio streams.  If that's what you think you need I can 
dig them out.

I don't ever remember have too much trouble with MP3 or ogg files directly.  
But obviously they vary in how they're encoded, and yours could be requiring 
more bandwidth than is available.

> After learning that there was an opieplayer 2, I decided to import the
> codecs into the current filesystem that I would port to the board. I saved
> the codecs to the plugins folder. I got them from the ipkgfind.com website.
> This time the performance was as follows. It still refused to play video,
> but played .ogg audio files in addition to .mp3 and .wav audio files.
>
> In terms of streaming, the performance did not change whether i used the
> new opie player 2 codecs or not. It played precisely just one .ogg
> streaming file that i obtained (http://auggie.wclv.com/lo.ogg). All other
> .ogg and .m3u streaming files i tried (
> http://lists.w3.org/Archives/Public/public-html/2007Oct/0097.html) gave me
> a segment error, SIGFPE and terminated the application completely.
>
> My aim is to get the player working, i.e to be able to play video files and
> most importantly be able to stream. According to what I have read in forum
> posts and the opie home page, player2 should be able to do all of the
> above. Am I including the player2 codecs in the wrong folder?
>
> If any of you could help me I would be more than grateful! Thank you..
>
> Sincerely,
> Raji



-- 
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 Robert E. Anderson  		 	email: [email protected]
 Systems Programmer			phone: (603) 862-3489
 UNH Research Computing Center		  fax: (603) 862-1761
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